245354831 has 2 divisors, whose sum is σ = 245354832. Its totient is φ = 245354830.

The previous prime is 245354827. The next prime is 245354843. The reversal of 245354831 is 138453542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245354831 - 2² = 245354827 is a prime.

It is a super-2 number, since 2×245354831² = 120397986190077122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_13439069 and since 245354831 and 13439069 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 245354791 and 245354800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245354231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122677415 + 122677416.

It is an arithmetic number, because the mean of its divisors is an integer number (122677416).

Almost surely, 2^245354831 is an apocalyptic number.

245354831 is a deficient number, since it is larger than the sum of its proper divisors (1).

245354831 is an equidigital number, since it uses as much as digits as its factorization.

245354831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 245354831 is about 15663.8064020212. The cubic root of 245354831 is about 626.0344095040.

The spelling of 245354831 in words is "two hundred forty-five million, three hundred fifty-four thousand, eight hundred thirty-one".